CN216571980U - Filter equipment, container base and container - Google Patents

Abstract

The utility model discloses a filtering device, a container base and a container, wherein the filtering device comprises a cover plate, a cylinder and a first filtering layer; the cover plate is provided with an oil inlet; a cavity is arranged in the cylinder, an opening communicated with the cavity is formed in one end of the cylinder, the cover plate covers and is fixed at the opening of the cylinder, an oil outlet communicated with the cavity is formed in the side wall of the cylinder, and the oil outlet is located at one end, close to the oil inlet, of the cavity; the first filter layer is arranged at the oil inlet. The technical scheme of the utility model can prevent sand and dust from entering the oil storage bin, and avoid the reduction of the effective oil storage volume of the oil storage bin caused by the incapability of discharging the sand and dust.

Description

Filter equipment, container base and container

Technical Field

The utility model relates to the technical field of containers, in particular to a filtering device, a container base and a container.

Background

The oil-immersed transformer is a novel high-performance transformer which uses mineral oil or vegetable oil as an insulating medium of an iron core and a winding of the transformer and also serves as a cooling medium. Generally, when an oil-immersed transformer fails or is accidentally impacted, oil leakage occurs, and the insulating oil has certain pollution to the soil environment, so that accident oil possibly generated needs to be collected, and pollution expansion is avoided.

Generally, the surface of an upper bottom plate of a container base is welded with oil blocking edges, the oil blocking edges are enclosed into a circle to form a transformer chamber, an oil storage bin is arranged below the transformer chamber on the upper bottom plate, and meanwhile, a plurality of oil leakage holes communicated with the oil storage bin are formed in the periphery of the oil blocking edges on the upper bottom plate. When an oil leakage accident happens to the transformer placed on the container base, accident oil flows into the oil storage bin from the oil leakage hole, and therefore collection of the accident oil is achieved.

Because the container is all installed outdoors, debris such as sand and stone can blow the container on, these sand and stone foreign matters can flow into the oil storage bin along with the rainwater through the oil leak hole in, the oil storage bin bottom generally is equipped with the oil water separating valve, and rainwater accessible oil water separating valve discharges, but the sand and wind foreign matters is difficult but to discharge through the valve, and the effective oil storage volume that will lead to the oil storage bin like this is more and more littleer, and then the influence is to the effect that accident oil was collected.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a filtering device, a container base and a container, aiming at preventing sand and dust from entering an oil storage bin and avoiding reduction of effective oil storage volume of the oil storage bin due to incapability of removing the sand and dust.

To achieve the above object, the present invention provides a filter device, comprising:

the cover plate is provided with an oil inlet;

the oil-saving filter comprises a barrel, wherein a cavity is arranged in the barrel, one end of the barrel is provided with an opening communicated with the cavity, a cover plate is covered and fixed at the opening of the barrel, and the side wall of the barrel is provided with an oil outlet communicated with the cavity;

the first filter layer is arranged at the oil inlet.

Optionally, the oil outlet is located at one end of the cavity close to the oil inlet.

Optionally, the filter device further comprises a second filter layer disposed at the oil outlet.

Optionally, the second filter layer has a filter fineness greater than the filter fineness of the first filter layer.

Optionally, the cartridge comprises:

the end plate is opposite to the cover plate and is arranged at intervals;

the coaming is connected between the cover plate and the end plate, the coaming is encircled to form the cavity, and the oil outlet is arranged on the coaming.

Optionally, the enclosing plate includes a plurality of side plates, two ends of each side plate are respectively connected with the cover plate and the end plate, and the side edges of two adjacent side plates are connected with each other.

Optionally, the oil outlets are opened on the side plates.

Optionally, a mounting hole is formed in a part, outside the cylinder, of one side surface of the cover plate facing the cylinder, and a fastener is used for penetrating through the mounting hole so as to fix the filtering device to a container base; alternatively, the first and second electrodes may be,

the part of one side surface of the cover plate facing the cylinder body outside the cylinder body is provided with a connecting piece, and the connecting piece is used for connecting a container base so as to fix the filtering device on the container base.

Optionally, a handle is arranged on one side surface of the cover plate, which faces away from the barrel body.

Optionally, the cover plate is detachably connected with the cylinder.

In order to achieve the above object, the present invention further provides a container base, which includes an upper bottom plate and the filtering device as described above;

the upper bottom plate is provided with an oil leakage opening, and the filtering device is detachably arranged at the oil leakage opening;

the cover plate of the filtering device covers the oil leakage opening, and the cylinder of the filtering device is located below the oil leakage opening.

Optionally, the container base further comprises a lower bottom plate and a sealing plate;

the lower bottom plate and the upper bottom plate are opposite and arranged at intervals, and the sealing plate is enclosed between the upper bottom plate and the lower bottom plate;

an oil storage cavity is formed among the upper base plate, the lower base plate and the sealing plate, and the oil leakage port is communicated with the oil storage cavity.

Optionally, an oil retaining edge surrounded and enclosed is arranged on the surface of the upper bottom plate, an oil groove is formed in the oil retaining edge by the upper bottom plate, and the oil leakage port is located in the oil groove area; alternatively, the first and second electrodes may be,

the surface part of the upper bottom plate is concavely provided with an oil groove, and the oil leakage port is positioned in the area of the oil groove.

In order to achieve the above object, the present invention further provides a container, which includes a transformer and the container base as described above, wherein the transformer is disposed on the container base.

According to the technical scheme, when the transformer has an oil leakage accident, accident oil flows into the cavity of the cylinder body from the oil inlet in the cover plate, and the first filter layer is arranged at the oil inlet and can filter foreign matters to prevent large-volume sand and stone and the like from entering the cavity of the cylinder body, and part of small-volume sand and dust can enter the cavity of the cylinder body along with the accident oil. Because the density of sand and dust is greater than the density of oil, the sand and dust that gets into the barrel cavity will sink to the bottom of cavity, and the cavity of barrel can be saved sand and dust, and the accident oil that gets into the barrel cavity then can flow to the oil storage bin through the oil-out to the realization is to the collection of accident oil. The sand and dust stored in the cylinder body can be cleaned regularly, and the operation is simple and convenient. Therefore, the oil storage bin can prevent external sand and dust from entering the oil storage bin, and the reduction of the effective oil storage volume of the oil storage bin caused by the fact that the sand and dust cannot be discharged is avoided, so that the collection effect on accident oil can be guaranteed.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a filtering apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic view of the filter apparatus of FIG. 1 from another perspective;

FIG. 3 is a schematic view of the cover plate of the filter device of FIG. 1;

FIG. 4 is a schematic view of the cartridge of the filtration device of FIG. 1;

FIG. 5 is a schematic view of the construction of the container base-mounted filter assembly of the present invention;

FIG. 6 is an enlarged schematic view at A in FIG. 5;

FIG. 7 is a schematic view of the unassembled filter assembly of the container base of the present invention;

fig. 8 is an enlarged schematic view at B in fig. 7.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name(s)
				100	Filter device	123	Oil outlet
110	Cover plate	124	End plate
				111	Oil inlet	125	Side plate
112	Mounting hole	126	Flanging
				113	Connecting bolt	127	Connecting hole
114	Handle bar	200	Container base
				120	Barrel body	210	Upper soleplate
121	Hollow cavity	211	Oil leakage opening
				122	Opening of the container	220	Oil retaining edge

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The present invention provides a filter apparatus 100.

In the embodiment of the present invention, as shown in fig. 1 to 4, the filter device 100 includes a cover plate 110, a cylinder 120, and a first filter layer (not shown); the cover plate 110 is provided with an oil inlet 111; a cavity 121 is formed inside the cylinder 120, an opening 122 communicated with the cavity 121 is formed in one end of the cylinder 120, the cover plate 110 is covered and fixed at the opening 122 of the cylinder 120, and an oil outlet 123 communicated with the cavity 121 is formed in the side wall of the cylinder 120; the first filter layer is arranged at the oil inlet 111.

It should be noted that the filter device 100 of the present invention can be applied to the container base 200. The upper floor 210 of the container base 200 is provided with a transformer room for carrying a transformer. An oil storage bin is disposed below the upper bottom plate 210 of the container base 200 corresponding to the transformer chamber, an oil leakage port 211 (shown in fig. 7 to 8) communicating with the oil storage bin is formed in the upper bottom plate 210 of the container base 200, and the filtering device 100 is detachably mounted at the oil leakage port 211 and located in the oil storage bin (shown in fig. 5 to 6).

Optionally, the oil leakage port 211 is a square port, and the filter device 100 is correspondingly configured to be a rectangular structure. Of course, the oil leakage port 211 and the filter device 100 may have other shapes and structures, and may be arranged according to actual needs. It is easy to understand that the cover plate 110 has an outer dimension larger than the opening 122 of the cylinder 120 to cover the opening 122 of the cylinder 120, and the oil inlet 111 of the cover plate 110 may have a dimension smaller than or equal to the opening 122 of the cylinder 120. In addition, the first filter layer can be a filter screen, such as a wire mesh or a steel wire mesh, and of course, other materials with filtering performance are also adopted as the first filter layer.

When the transformer has an oil leakage accident, the accident oil flows into the cavity 121 of the cylinder 120 from the oil inlet 111 of the cover plate 110, and the first filter layer is arranged at the oil inlet 111 and can filter foreign matters to prevent sand and stone with large volume from entering the cavity 121 of the cylinder 120, and part of sand and dust with small volume may enter the cavity 121 of the cylinder 120 along with the accident oil. Because the density of the sand and dust is greater than that of the oil, the sand and dust entering the cavity 121 of the cylinder 120 will sink to the bottom of the cavity 121, the cavity 121 of the cylinder 120 can store the sand and dust, and the accident oil entering the cavity 121 of the cylinder 120 will flow into the oil storage bin through the oil outlet 123, so that the collection of the accident oil is realized. The sand and dust stored in the cylinder 120 can be cleaned regularly, and the operation is simple and convenient. Therefore, the oil storage bin can prevent external sand and dust from entering the oil storage bin, and the reduction of the effective oil storage volume of the oil storage bin caused by the fact that the sand and dust cannot be discharged is avoided, so that the collection effect on accident oil can be guaranteed.

Optionally, the oil outlet 123 is located at one end of the cavity 121 close to the oil inlet 111, that is, the oil outlet 123 is located at the upper end of the cylinder 120. With the arrangement, when the sand and dust passing through the first filter layer enters the cavity 121 of the cylinder 120, the sand and dust can sink to the bottom of the cavity 121 and accumulate at the position of the cylinder 120 far away from the oil outlet 123, but cannot directly reach the position of the oil outlet 123, and the sand and dust can be prevented from entering the oil storage bin through the oil outlet 123. When the dust accumulates to a certain height, it will approach the oil outlet 123, and at this time, the filtering apparatus 100 can be cleaned.

In an embodiment, the filter device 100 further comprises a second filter layer (not shown) arranged at the oil outlet 123.

In the case that no protective component is arranged at the oil outlet 123, although the dust with a smaller volume will automatically sink to the bottom of the cavity 121 under the action of gravity after entering the cavity 121 of the cylinder 120 through the first filter layer, there may be some dust moving laterally under the action of wind force, moving to the position of the oil outlet 123 and entering the oil storage bin; in addition, the cavity 121 of the cylinder 120 can only store a certain amount of dust and sand, and when the dust and sand are accumulated to a certain degree, namely the height of the dust and sand reaches the position of the oil outlet in the cavity 121, the dust and sand can also enter the oil storage bin through the oil outlet 123. For this reason, this embodiment sets up the second filter layer in oil-out 123 department, can inject the sand and dust in the cavity 121 of barrel 120, blocks that the sand and dust enters into the oil storage bin through oil-out 123 to can further improve sand prevention effect, can not reduce with the effective oil storage volume of guaranteeing the oil storage bin, guarantee the collection effect to the accident oil. Optionally, the filtering precision of the second filtering layer is greater than that of the first filtering layer, that is, the second filtering layer can filter impurities with smaller volume, so that the filtering effect on the dust can be further improved. The second filter layer can be a filter screen, such as a wire mesh or a steel wire mesh, and of course, other materials with filtering performance are also used for the second filter layer.

In one embodiment, referring to fig. 4, the barrel 120 includes an end plate 124 and a shroud; the end plate 124 is opposite to and spaced from the cover plate 110; a shroud is connected between the cover plate 110 and the end plate 124, the shroud enclosing a cavity 121, and an oil outlet 123 opening in the shroud.

In this embodiment, the cylinder 120 may be a cylinder, so that the filter device 100 has a regular shape, and the filter device 100 is conveniently inserted into the oil leakage port 211 or taken out of the oil leakage port 211, thereby improving the installation and removal efficiency. Furthermore, the filter device 100 may be conveniently placed by forming the filter device 100 into a flat bottom structure with the end plate 124.

In one embodiment, referring to fig. 4, the enclosure comprises a plurality of side plates 125, two ends of each side plate 125 are respectively connected to the cover plate 110 and the end plate 124, and the side edges of two adjacent side plates 125 are connected to each other.

In this embodiment, the cylinder 120 may be a rectangular structure, that is, the enclosing plate includes four side plates 125, and the four side plates 125 are connected in sequence and enclose end to end, so as to enclose a rectangular cavity 121 between the cover plate 110 and the end plate 124. By providing the filter device 100 in a regular shape, the filter device 100 can be easily mounted and dismounted. In addition, the oil outlet 123 may be a square opening to increase the diameter of the accident oil passing through, and accelerate the flow of the accident oil.

Further, referring to fig. 4, the plurality of side plates 125 are all provided with oil outlets 123.

Through all setting up oil-out 123 on every curb plate 125, can accelerate accident oil and flow to the storage oil storehouse from barrel 120 cavity 121 to in time collect the storage oil storehouse with the accident oil of revealing on container end plate 124, avoid accident oil to the pollution and the pollution enlargeization of soil environment.

In one embodiment, referring to fig. 3, a mounting hole 112 is formed on a side surface of the cover plate 110 facing the cylinder 120, the side surface being outside the cylinder 120, and the mounting hole 112 is used for a fastener to pass through so as to fix the filtering device 100 to the container base 200.

Specifically, the cover plate 110 is a rectangular plate, the four corners of the cover plate 110 are respectively provided with a mounting hole 112, and meanwhile, the surface of the upper bottom plate 210 of the container base 200 is provided with screw holes, and the number, shape and size of the screw holes are arranged corresponding to the mounting holes 112. When the filter device 100 is installed at the oil leakage port 211 of the upper base plate 210 of the container base 200, the cylinder 120 is first partially placed in alignment with the oil leakage port 211, the cover plate 110 covers the oil leakage port 211, the peripheral edge of the cover plate 110 is tightly attached to the surface of the upper base plate 210, and then the head of the bolt is pressed against the cover plate 110 by a fastener, such as a bolt, passing through the installation hole 112 and inserting into the screw hole, so that the filter device 100 can be fixed on the container base 200. Otherwise, take out the bolt from the screw, can pull down filter equipment 100 from container base 200, easy operation is convenient, can realize carrying out the regular clearance to the dust and sand that filter equipment 100 stores.

In another embodiment, a portion of a side surface of the cover plate 110 facing the cylinder 120 outside the cylinder 120 is provided with a connector for connecting the container base 200 to secure the filtering apparatus 100 to the container base 200.

Specifically, the connecting members may be bolts, that is, the bolts are welded to the cover plate 110, and the surface of the upper base plate 210 of the container base 200 is provided with screw holes, the number and the shape and the size of which are arranged corresponding to the bolts. In this manner, the removable attachment of the filter assembly 100 to the container base 200 may be accomplished through the mating of the bolts and the threaded holes. Of course, the connecting member may also be other connecting structures such as a buckle, and a clamping groove is correspondingly disposed on the surface of the upper bottom plate 210 of the container base 200, and the detachable connection between the filtering device 100 and the container base 200 can also be realized through the clamping fit between the buckle and the clamping groove.

In an embodiment, referring to fig. 3, a handle 114 is disposed on a side surface of the cover plate 110 facing away from the cylinder 120.

Specifically, two handles 114 may be provided, and the two handles 114 may be symmetrically provided. Through set up handle 114 at the upper surface of apron 110, can make things convenient for when the staff takes out filter equipment 100, take up filter equipment 100 from the oil leak 211 of the upper plate 210 of container base 200 with the help of handle 114 to improve the convenience of dismantling.

In one embodiment, the cover plate 110 is removably coupled to the barrel 120.

Specifically, referring to fig. 3 and 4, a connecting bolt 113 is disposed on a side surface of the cover plate 110 facing the barrel 120, and meanwhile, a flange 126 structure is disposed at an end of the side plate 125 of the barrel 120 close to the cover plate 110, the flange 126 is provided with a connecting hole 127, and the connecting hole 127 may be a kidney-round hole, so as to improve tolerance. When the cover plate 110 and the cylinder 120 are installed, the connecting bolt 113 on the cover plate 110 passes through the connecting hole 127 on the cylinder 120, and the connecting nut and the connecting bolt 113 are screwed tightly, so that the cover plate 110 and the cylinder 120 can be fastened together (as shown in fig. 2). The cover plate 110 and the cylinder 120 can be easily manufactured separately and parts can be easily replaced by detachably assembling the cover plate 110 and the cylinder 120. Of course, the cover plate 110 and the barrel 120 may also adopt other connection modes, and compared with the clamping fit of the buckle and the clamping groove, the detachable connection between the cover plate 110 and the barrel 120 can also be realized.

Referring to fig. 5 to 7, the container base 200 further includes an upper bottom plate 210 and a filtering device 100, and the specific structure of the filtering device 100 refers to the above embodiments, and since the container base 200 adopts all technical solutions of all the above embodiments, the container base at least has all the beneficial effects brought by the technical solutions of the above embodiments, and details are not repeated herein. Wherein, the upper base plate 210 is provided with an oil leakage port 211, and the filtering device 100 is detachably installed at the oil leakage port 211; the oil leakage port 211 is covered by the cover plate 110 of the filter device 100, and the cylinder 120 of the filter device 100 is located below the oil leakage port 211.

In one embodiment, the container base 200 further comprises a lower floor plate and a sealing plate; the lower bottom plate is opposite to the upper bottom plate 210 and is arranged at intervals, and the sealing plate is enclosed between the upper bottom plate 210 and the lower bottom plate; wherein, an oil storage cavity is formed among the upper base plate 210, the lower base plate and the sealing plate, and the oil leakage port 211 is communicated with the oil storage cavity.

In this embodiment, the oil storage bin is the integral type structure, and the oil storage bin comprises upper plate 210, lower plate and closing plate promptly, and the enclosed space of upper plate 210, lower plate and closing plate inside is the oil storage chamber, and structural design can be simplified to this scheme. Of course, the oil storage bin may also be an independent structure, that is, a separate oil storage device is additionally disposed between the upper base plate 210 and the lower base plate.

In an embodiment, referring to fig. 5 to 7, an oil retaining rim 220 is disposed around the surface of the upper base plate 210, the upper base plate 210 forms an oil groove in the oil retaining rim 220, and the oil leakage opening 211 is located in the oil groove area.

In this embodiment, the oil dam 220 extends along and encloses the edge of the transformer chamber of the upper base plate 210, thereby forming a square frame. The oil blocking edge 220 has a certain thickness, so that accident oil leaked by the transformer can be confined within a certain range, and the accident oil is prevented from diffusing to pollute the surrounding soil environment. In addition, the oil leakage ports 211 may be distributed at diagonally opposite corners of the transformer room.

In another embodiment, the surface portion of the upper plate 210 is recessed to form an oil groove, and the oil leakage port 211 is located in the oil groove region.

The surface of the upper base plate 210 is sunken downwards to form a sunken structure, so that accident oil leaked by the transformer can be confined in a certain range, the collection of the accident oil is facilitated, and the pollution is avoided.

The utility model further provides a container, which comprises a transformer and a container base 200, the specific structure of the container base 200 refers to the above embodiments, and the container adopts all technical solutions of all the above embodiments, so that the container at least has all beneficial effects brought by the technical solutions of the above embodiments, and further description is omitted. Wherein, the transformer is arranged on the container base 200, and the transformer is located in the oil groove area.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (14)

1. A filter device, comprising:

the cover plate is provided with an oil inlet;

the oil-saving filter comprises a barrel, wherein a cavity is arranged in the barrel, one end of the barrel is provided with an opening communicated with the cavity, a cover plate is covered and fixed at the opening of the barrel, and the side wall of the barrel is provided with an oil outlet communicated with the cavity;

the first filter layer is arranged at the oil inlet.

2. The filter apparatus of claim 1, wherein said oil outlet is located at an end of said cavity adjacent said oil inlet.

3. The filter device of claim 1, further comprising a second filter layer disposed at the oil outlet.

4. A filter arrangement as claimed in claim 3, wherein the second filter layer has a greater filtration precision than the first filter layer.

5. The filtration device of claim 1, wherein the cartridge comprises:

the end plate is opposite to the cover plate and is arranged at intervals;

the coaming is connected between the cover plate and the end plate, the coaming is encircled to form the cavity, and the oil outlet is arranged on the coaming.

6. The filter apparatus of claim 5, wherein the shroud comprises a plurality of side plates, wherein the side plates are connected at opposite ends to the cover plate and the end plate, respectively, and wherein the side edges of two adjacent side plates are connected to each other.

7. The filter apparatus of claim 6, wherein said side plates each have said oil outlet opening.

8. The filtering device according to any one of claims 1 to 7, wherein a portion of a side surface of the cover plate facing the cylinder outside the cylinder is provided with a mounting hole for passing a fastener to fix the filtering device to a container base; alternatively, the first and second electrodes may be,

the part of one side surface of the cover plate facing the cylinder body outside the cylinder body is provided with a connecting piece, and the connecting piece is used for connecting a container base so as to fix the filtering device on the container base.

9. A filter device as claimed in any one of claims 1 to 7, wherein a side surface of the cover plate facing away from the cartridge body is provided with a handle.

10. A filter device as claimed in any one of claims 1 to 7, wherein the cover plate is removably connected to the cartridge.

11. A container base comprising an upper floor and a filter device as claimed in any one of claims 1 to 10;

the upper bottom plate is provided with an oil leakage opening, and the filtering device is detachably arranged at the oil leakage opening;

the cover plate of the filtering device covers the oil leakage opening, and the cylinder of the filtering device is located below the oil leakage opening.

12. The container base of claim 11, further comprising a lower base plate and a sealing plate;

the lower bottom plate and the upper bottom plate are opposite and arranged at intervals, and the sealing plate is enclosed between the upper bottom plate and the lower bottom plate;

an oil storage cavity is formed among the upper base plate, the lower base plate and the sealing plate, and the oil leakage port is communicated with the oil storage cavity.

13. The container base of claim 11, wherein the upper floor has a rim around the upper floor, the upper floor forming an oil sump within the rim, the oil drain being located in the sump area; alternatively, the first and second electrodes may be,

the surface part of the upper bottom plate is concavely provided with an oil groove, and the oil leakage port is positioned in the area of the oil groove.

14. A container, characterized in that it comprises a transformer and a container base according to any one of claims 11 to 13, said transformer being arranged on said container base.

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